AirHint found the following cheapest return flights from Christchurch (CHC) to Seoul (ICN) in December 2025 (see full year).

Return flights

09 Dec - 31 Jan	Jetstar
01 Dec - 26 Dec	Cathay Pacific
04 Dec - 31 Dec	Cathay Pacific
03 Dec - 23 Dec	Jetstar
08 Dec - 31 Dec	Singapore Airlines
09 Dec - 22 Jan	Jetstar
03 Dec - 22 Dec	Air New Zealand
08 Dec - 22 Jan	Jetstar
08 Dec - 10 Jan	Jetstar
09 Dec - 07 Jan	Air New Zealand
10 Dec - 06 Jan	Jetstar
22 Dec - 07 Jan	Air New Zealand
17 Dec - 26 Jan	Singapore Airlines
18 Dec - 26 Jan	Air New Zealand
15 Dec - 26 Jan	Air New Zealand

Also check the deals for one-way flights from Christchurch to Seoul in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Christchurch to Seoul in December from $1068

Return flights